Lube and bleed casing adaptor

Abstract

A casing adapter and related systems and methods are provided for a lubricate and bleed operation in a wellbore where heavy fluids are directly deposited downwell. The casing adapter allows a hose to be positioned downwell and to be operably connected to a tank of heavy fluid. Once the heavy fluid is deposited, the casing adapter receives lighter fluids from the well bore, and the casing adapter is operably connected to a return tank that stores lighter fluids.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of U.S. Application Ser. No. 62 / 487,931, filed on Apr. 20, 2017, which is incorporated by reference in its entirety.FIELD OF THE INVENTION[0002]The invention relates to an apparatus and methods for placing desired fluids in well annuli from surface and optimizing lube and bleed operations in an oil and gas well.BACKGROUND OF THE INVENTION[0003]In completed oil and gas wells, it is sometimes desired to place fluids downhole, either as far from surface as possible or at a predetermined distance from surface. Such fluids, typically intended to remedy an issue with the well, typically have a higher chance of successfully remedying the issue if applied as deep as possible. At the same time, as will be appreciated by those in the field, the cheapest and most readily available access point for inserting such fluids into the well is at the wellhead. One well known technique for placing desired fluids downhole vi...

AI Technical Summary

Benefits of technology

This approach significantly reduces wait times, increases accuracy, and facilitates fluid placement in both pressurized and unpressurized wells, providing cost and time savings while ensuring precise fluid delivery deep within the well.

Problems solved by technology

Further, wells will sometimes be under pressure, which decreases the amount of fluid that can be introduced into the well in any given phase of the lubricate and bleed operation.

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